A class is learning about states of matter. The students set up the investigation in the diagram. Which kinds of energy are needed in this investigation to change the state of matter of the owl made of wax?

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative